System of double ventilation.



lull

N0. 872,199. PATENTED NOV. 26, 1907. H. I. M. RUSS.

SYSTEM 0E DOUBLE VENTILATION.

APLIUATION FILED OUT-11, 1906.

2 SHBETSSHEET l. FI G. l

nl B6 2. 6

m f A/ I AAU K L/l E B 0 7 l gg i A B f S i "PATENTED NOV. 26, 1907. H. I. M. ROSS.

SYSTEM OP DOUBLE VENTILATION.

APPLICATION FILED 001.11, 1906.

2 sums-'SHEET 2.

Flam

. /nS/Oww.

'n'. lmus rnzns cm wAsNmcraN. nv c.

fw. v

PATENT oEEicE.

HENRY ISMAY MORALEE ROSS, OF DUNEDIN, NEW ZEALAND.

SYSTEM OF DOUBLE VENTILATION.

To all whom 'it may concern; f

Beit known that I, HENRY ISMAY MORA- LEE Ross, a subject of the King of Great Britain, of 91a Princess street, in the city-of Dunedin, in the British Colony of New Zealand, and whose post-office address is Dunedin, a Ventilating-engineer, have invented certain new and useful Improvements in a Systemv of Double-Current Ventilation, of which the following is a speciiication.

The object of this invention is to set forth an improved system of double current ventilation, either in a compactform from which both the fresh air is forced and directed to apartments and the foul air is withdrawn from same by merelylaying pipes to and from these places, or 1n an extended form .where advantage is taken of architectural features as gables, gablets, dormers, turrets &c. which couldbe arranged to receivethe fresh air from all quarters at about roof level\while the part of my apparatus that` withdraws foul air would be erected where required for that purpose. 4When too much air is being renewedv I partly or wholly short circuit the currents to regulate the air-flow, (which -is obviously preferable to closingoii any single current as now usually done, and which I wish to avoid.)

For supply' g fresh air in equal quantities to that which 1s withdrawn, I form inlets,

either facing in all directions, generally furnishing same with specially constructed rocking or ball valves, orin the cowls that revolve, an inlet that automatically faces the wind. The inlet 'that faces the air-current readily admits same while in the fixed cowls Y inlets, toget er with a water tray in position all others automatically close reventing its egress, so that said current is 'verted to the.

places to be ventilated. The fresh and foul air currents are worked at about the same elevation, preferably'about roof level, thus insuring equal workin and equal pressure of both currents, and a so obtaining the air where freshest instead of from lower down where it might be contaminated. Where desired air may be made to impinge on trays of water before being admitted to acompartment.

Referrin to the accompanying drawin of 2 sheets igure 1 is a section of a buil ing showing my complete system of ,ventilation and showin three cowls and two extended Specification of Letters Patent. Application filed October 11l 1906. Serial Nb. 338.510.

Patented Nov. 26, 1907.

i for trapping dust. Fig. 2 is an elevation of Fig. 7 is a longitudinal section of a wall flue or cavity showing fresh air inlet at skirting' level and Fig. 8 is a plan of same. Fig. 9 is an enlarged plan of the air distributing box set of light frames.

Like reference characters designate correspondin parts throughout the views.

into A15 A3 is a ca A4 A5 and A6 are concentrating deflecting p anes for creating a blowpipe acj tion over the top of the exhaust tube'A.

the revolving case of the cowl leaving sufiientering at the inlet to get outside.

B B are inlets arranged around a fixed cowl, facing several ways, or on one side of a revolvin cowl or distributed if arranged in extende form as in Fig. 4.

Blare fresh air pipes, or roof or wall spaces where available, for conducting the air from cowls to a artments.

B2 are istributing boxes (Fig. 9) for receiving fresh air from pipes, roof or wall spacesB.

B3 are deiiecting plates for a more through gratings B* B4 as shown.

let of a revolvlng cowl. v

B6 is a larger pipe encircling pipe A for conducting the fresh air currents from cowl 1nlets to pipes, roof or wall spaces, thence to apartments below.

B7 is a-defiecting tube for directing air on to water contained. in trays &c.

C is a door in pipe A and D is a door in pipe B, for regulating the flow ofair within the apartments below, by short-clrcultlng a Fig. 4 is a A7 is a ring shaped cone arranged within tuniform distribution of fresh air, preferablyl to advancing air, and Fig. Gis a plan' of same.

shown in 8. Fig. 10 is an elevation of va f p E all valves and Fig. 11 is a sectional elevation or end section of the frame' with the balls shown in elevation in vtheir 1.-1

A is t e foul air exhaust pipe or conduit" and A1 branches drawing up the foul air from Y l any apartment A2 isa bell-mouth leading `75 cient space between to allow any drip water B5 is a weather guard placed within the inportiqn of the air within the roof, both being actuated together by cord D1. When a roof space is used instead of pipes B1, the door C is suflicient. l

E are valve frames, either fitted with rocking valves E2 or ball valves E4L workin in wire cages E5 in a cowl or in extended i ets. In Fig. 3 the inlet portion of the cowl revolves on rod J supported where needed by bearings J1 and running in the usual step with guide rollers K K to steady the cowl.

L is a water tray preferably with sloping bottom connected to cistern L1, several such connections may be made to one cistern which is capable of being flushed. Arrows show directions of the double air currents under various conditions. The cowl marked 1 in Fig. 1 is a revolving one. Cowlv 2 is a fixed one with automatic valves. Cowl 3 is an exhaust one similar in construction to the top portion of cowls 1 and 2. Doors C and D when open as shown under cowl 2, and door C under cowl 1 short circuit part of currents for regulating thel ventilation of a artments; these doors when closed cause t e whole of the air to iiow through the apartments to be ventilated.

Revolving cowl 1, fixed cowl with automatic valves 2, and exhaust cowl 3, together with the extended inlets B B, Figs. 1 and 2, are all parts of one system as shown in Fig. 1, but are capable of separate use according to the size and style of architecture of the building to `-be ventilated. The idea is to take advantage of every suitable feature in a building for the introduction of as much freshair into it as possible. Where the requirements are great, to confine inlets to cowls alone would necessitate making cowls unduly large or so numerous as to materially weaken the structure, in such cases the various arrangements shown in Fig. 1 are used in combination, the fixed or revolving cowls being placed over that ortion o the building where the demand or air is least and the extended inlets in combination with larger exhausts would be placed over that part where demand was greatest. For instance in a school consisting of hall and smaller rooms under same roof the greatest demand would be for the hall and it is for such places that extended inlets and exhaust cowls as 3, Fig. 1, would prove most useful.

Having now described my said invention what I desire to protect by Letters Patent of the United States of America, is

1. In a double current system of ventilation including one or more apartments, the combination of a plurality of deflecting planes for inducing a current of foul air, an annular chamber having valved openings same to said apartments, and means in the roof for short-circuiting said currents of air.

2.` In a double current system of ventilation including one or more apartments, the combination of a plurality of fresh air inlets adapted to automatically open to admit air, a plurality of fresh air inlets adapted to automatically close to oppose the exit of said air, a foul air cowl and pipe in communication with said inlets, and means for shortcircuiting said currents of air.

3. In a double current system of ventilation including one or more apartments, the

matically exhausting the foul air, afresh air inlet carried by -said cowl, and deflecting means for said fresh air.

4. In a double current system of ventilation including one or more apartments, the combination of a plurality of ratings, and distributing air boxes arranged to equalize Athe flow of air through said gratings.

5. In a double current system of ventilation including one or more apartments, the combination of a revolving cowl, a fixed cowl having automatic valves, an exhaust cowl and extended inlets, distributing boxes for said inlets, a flushing cistern, dustarresti water trays connected with said cistern, an means for short-circuitinr the air currents.

In testimony whereolf` I have hereunto affixed my signature'in the presence of two subscribing witnesses.

HENRY ISMAY MORALEE ROSS.

Witnesses:

HENTON'MACAULAY DAVEY, FRANCIS WILLIAM PAYNE.

combination of a revolving cowl for auto-- for admitting fresh air and directing the 

